Spam Detection Techniques Recapped

This paper examines the modern defensive measures that deal with the global spam traffic over the Internet. Much of the review consists of cross-referencing recently published material on the subject matter and including the relatively new and promising methods and frameworks alongside them; unimplemented approaches with promising end results in other fields are also referenced and summarized. The highlighted defensive measures primarily cover the individual End-User tier of the Internet and the Domain Name System (DNS).